Washington State Data Book: The people, the economy, and the government of Washington State State of Washington Office of Financial Management
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Population in Incorporated and Unincorporated Areas

Source:  Office of Financial Management

POPULATION IN INCORPORATED AND UNINCORPORATED AREAS
Year Population Distribution (percent)
Total Incorporated Unincorporated Incorporated Unincorporated
1890 357,232 159,098 198,134 44.54 55.46
1900 518,103 263,523 254,580 50.86 49.14
1910 1,141,990 720,017 421,973 63.05 36.95
1920 1,356,621 865,625 490,996 63.81 36.19
1930 1,563,396 1,009,128 554,268 64.55 35.45
1940 1,736,191 1,058,933 677,258 60.99 39.01
1950 2,378,963 1,423,460 955,503 59.84 40.16
1960 2,853,214 1,703,049 1,150,165 59.69 40.31
1970 3,413,250 1,954,231 1,459,019 57.25 42.75
1980 4,132,353 2,123,164 2,009,189 51.38 48.62
1990 4,866,663 2,525,293 2,341,370 51.89 48.11
2000 5,894,143 3,519,520 2,374,623 59.71 40.29
Table LT061
Last modified March 28, 2008
OFM Forecasting Division
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